Cross Data Center Replication in Solr - A new approach
2023-06-20 , Kesselhaus

Learn about the motivation that led to the development of the new Cross Data Center (XDC) Replication module in Apache Solr and discover the capabilities it offers making it disaster ready.


Apache Solr is a critical piece of infrastructure for most companies dealing with data. The systems that Solr powers are critical, requiring high availability, low latency, and disaster recovery.

This talk introduces a new approach to cross data-center replication in Solr that allows for the feature to scale and ensure disaster readiness as well as lower latency at a scale that Solr is expected to support.

The audience will be provided a design overview including the challenges and approaches we tried. We will also introduce the current capabilities and our plan for this newly added Solr XDC module.

At the end of this talk, attendees would have a better understanding of how and when to use the new module to ensure disaster readiness for the Solr cluster as we’ll as the avenues for them to participate in enhancing the solution.

Anshum is an Apache Lucene and Solr committer and Project Management Committee member. He started dabbling with Lucene over 15 years ago, and since then has worked at various organizations building both internal and consumer facing search platforms on top of Lucene and Solr. He is currently a part of the ACS Open Source Solr team helping groups across Apple with their search infrastructure.